Finding the Fourth Proportional to 66,472,586.84, 91,747,475.12 and 38,979,372.44
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Solution
The fourth proportional to 66,472,586.84, 91,747,475.12 and 38,979,372.44 is: 53,800,508.95
Step by Step Solution
- Step 1: Write the proportion equation
66,472,586.84 : 91,747,475.12 = 38,979,372.44 : x - Step 2: Convert to fraction form
66,472,586.84/91,747,475.12 = 38,979,372.44/x - Step 3: Cross multiply
66,472,586.84x = 91,747,475.12 × 38,979,372.44 - Step 4: Simplify right side
66,472,586.84x = 3,576,259,002,770,825 - Step 5: Solve for x
x = 3,576,259,002,770,825/66,472,586.84 - Step 6: Final answer
x = 53,800,508.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.